JPH0137841B2 - - Google Patents
Info
- Publication number
- JPH0137841B2 JPH0137841B2 JP55055394A JP5539480A JPH0137841B2 JP H0137841 B2 JPH0137841 B2 JP H0137841B2 JP 55055394 A JP55055394 A JP 55055394A JP 5539480 A JP5539480 A JP 5539480A JP H0137841 B2 JPH0137841 B2 JP H0137841B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- winding frame
- superconducting
- cooling path
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 52
- 238000001816 cooling Methods 0.000 claims description 25
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 2
- 239000002470 thermal conductor Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
Description
【発明の詳細な説明】
本発明は超電導巻線を合成樹脂でモールドし、
超電導巻線の巻枠に巻線冷却用の寒剤が導出入す
る冷却路を設けた超電導コイルに関するものであ
る。[Detailed description of the invention] The present invention molds superconducting windings with synthetic resin,
This invention relates to a superconducting coil in which a cooling path is provided in the winding frame of the superconducting winding through which a refrigerant for cooling the winding is led in and out.
第１図は従来のこの種超電導コイルの一例を示
す断面図である。 FIG. 1 is a sectional view showing an example of a conventional superconducting coil of this type.
超電導巻線１は、その外周が巻枠２で包囲され
ており、巻枠２と共にエポキシ樹脂などの合成樹
脂で含浸固定し、線材が電磁力によつて動き摩擦
熱を発生するのを防止している。冷却路３は巻枠
２に設けられ、液体ヘリウムなどの寒剤が供給口
４から送り込まれ、排出口５から送り出されたの
ち、図示していない冷凍システムに戻る。 The outer periphery of the superconducting winding 1 is surrounded by a winding frame 2, which is impregnated and fixed together with a synthetic resin such as epoxy resin to prevent the wire from moving due to electromagnetic force and generating frictional heat. ing. A cooling path 3 is provided in the winding frame 2, into which a cryogen such as liquid helium is fed through a supply port 4, sent out through a discharge port 5, and then returned to a refrigeration system (not shown).
このような構成においては、冷却路３が巻枠２
の全面にわたつて設けられていないので、例えば
第１図の構成では、コイルの内径側の面からのみ
冷却することになる。また、一般に巻枠２はステ
ンレス鋼などの高強度部材が使われるので、その
熱伝導率は小さい。従つて巻線は十分に冷却され
ない。更に、外からの熱の侵入源としては輻射や
伝導による熱流入や外部磁界変動による渦電流損
などがあるが、これらが直接巻線１中に入つてく
るため、巻線１の冷却上好ましくない。 In such a configuration, the cooling path 3 is connected to the winding frame 2.
For example, in the configuration shown in FIG. 1, cooling is performed only from the inner diameter side of the coil. Further, since the winding frame 2 is generally made of a high-strength member such as stainless steel, its thermal conductivity is low. The windings are therefore not cooled sufficiently. Furthermore, sources of heat intrusion from the outside include heat inflow due to radiation and conduction, and eddy current loss due to fluctuations in the external magnetic field, but since these directly enter the winding 1, it is preferable for cooling the winding 1. do not have.
なお、特開昭53−8593号公報に示されたものの
ように、超電導巻線の外周を包囲する巻枠を銅や
アルミニウムなどの熱良導体で構成することも考
えられるが、巻枠は十分な強度が必要であり、巻
枠として銅やアルミニウムを使用した場合には強
度を確保するために厚い巻枠を使用しなければな
らず、また巻枠として熱良導体を使用すると、熱
が伝わり易いために、巻線を巻枠に収納後の溶接
仕上時に、巻線やエポキシ樹脂などの絶縁材を傷
めたり、溶接時にピンホールができて真空シール
特性を悪化させたりする。 It is also possible to construct the winding frame that surrounds the outer periphery of the superconducting winding with a good thermal conductor such as copper or aluminum, as shown in Japanese Patent Application Laid-open No. 53-8593, but the winding frame is not sufficient. Strength is required, and if copper or aluminum is used as the winding frame, a thick winding frame must be used to ensure strength, and if a good thermal conductor is used as the winding frame, heat is easily transmitted. Furthermore, during welding after the winding is housed in the winding frame, the winding and the insulating material such as epoxy resin may be damaged, and pinholes may be formed during welding, which may deteriorate the vacuum sealing properties.
本発明の目的は、巻線の温度上昇を防止して超
電導コイルの安定性を向上すると共に小形軽量化
を図り、かつ巻線を巻枠に収納後の溶接仕上時に
巻線や絶縁材（合成樹脂モールド）を傷めたり、
真空シール特性を悪化させることのない超電導コ
イルを得ることにある。 The purpose of the present invention is to improve the stability of superconducting coils by preventing temperature increases in the windings, and to reduce the size and weight of superconducting coils. damage the resin mold),
The object of the present invention is to obtain a superconducting coil that does not deteriorate vacuum sealing characteristics.
本発明の特徴は、超電導巻線を合成樹脂でモー
ルドし、超電導巻線の外周を包囲する巻枠に巻線
冷却用の寒剤が導出入する冷却路を設けた超電導
コイルにおいて、前記巻枠と冷却路を高強度部材
で形成し、前記巻枠と冷却路の外周を板状の熱良
導体によつて密接するようにして包囲したことに
ある。 The present invention is characterized by a superconducting coil in which a superconducting winding is molded with synthetic resin, and a winding frame surrounding the outer periphery of the superconducting winding is provided with a cooling path through which a cryogen for cooling the winding is led in and out. The cooling path is formed of a high-strength member, and the winding frame and the outer periphery of the cooling path are closely surrounded by a plate-like thermal conductor.
以下、本発明の具体的実施例を第２図および第
３図によつて説明する。なお第２図および第３図
において第１図と同一符号は同一部分または相当
部分を示す。 Hereinafter, specific embodiments of the present invention will be described with reference to FIGS. 2 and 3. Note that in FIGS. 2 and 3, the same reference numerals as in FIG. 1 indicate the same or equivalent parts.
第２図において、超電導巻線１はその外周を包
囲する巻枠２と共にエポキシ樹脂などの合成樹脂
で一体に含浸固定されており、この巻枠２には冷
却路３が設けられている。巻枠２と冷却路３はス
テンレス鋼などの高強度部材で形成されている。
巻枠２と冷却路３の外周には、アルミニウム板や
銅板などの熱良導体６が溶接やボルトによる締付
けなどにより密接されている。 In FIG. 2, a superconducting winding 1 and a winding frame 2 surrounding its outer periphery are integrally impregnated and fixed with a synthetic resin such as epoxy resin, and this winding frame 2 is provided with cooling passages 3. The winding frame 2 and the cooling path 3 are made of a high-strength member such as stainless steel.
A good thermal conductor 6 such as an aluminum plate or a copper plate is closely attached to the outer periphery of the winding frame 2 and the cooling path 3 by welding or tightening with bolts.
このような構成において、巻線１から発生する
熱は巻枠２に設けられた冷却路３を流れる寒剤に
伝わり巻線１の冷却が行われる。また、輻射熱な
どの外部から巻線１に侵入する熱あるいは電磁波
は巻枠２および冷却路３の全周を密接して包囲し
た熱良導体６によつて吸収され、熱の形で冷却路
３を流れる寒剤に伝わり冷却が行われる。 In such a configuration, the heat generated from the winding 1 is transmitted to the coolant flowing through the cooling path 3 provided in the winding frame 2, and the winding 1 is cooled. Heat or electromagnetic waves that enter the winding 1 from the outside, such as radiant heat, are absorbed by the heat conductor 6 that closely surrounds the entire circumference of the winding frame 2 and the cooling path 3, and the cooling path 3 is absorbed in the form of heat. Cooling is carried out through the flowing refrigerant.
以上説明したように、本発明の超電導コイル
は、熱良導体が巻線に侵入しようとする熱および
電磁波を吸収して熱の形で冷却路中の寒剤に伝達
するようにして巻線の温度上昇を防止するように
したので、超電導コイルの安定性を向上できる。 As explained above, in the superconducting coil of the present invention, the temperature of the winding increases as the thermal conductor absorbs heat and electromagnetic waves that try to enter the winding, and transmits the heat in the form of heat to the cold agent in the cooling path. Since this is prevented, the stability of the superconducting coil can be improved.
また、本発明では巻枠と冷却路をステンレス鋼
などの高強度材で形成しているので、巻枠及び冷
却路を薄い板厚のもので構成でき、よつて小形軽
量化を図ることもできると共に、ステンレス鋼な
どの高強度材は熱良導体ではないので、巻線を巻
枠に収納後の溶接仕上時に巻線や絶縁材（合成樹
脂モールド）を傷めたり、真空シール特性を悪化
させることのない超電導コイルが得られるという
効果がある。 In addition, in the present invention, since the winding frame and the cooling path are made of high-strength material such as stainless steel, the winding frame and the cooling path can be constructed from thin plates, thereby making it possible to reduce the size and weight. At the same time, high-strength materials such as stainless steel are not good thermal conductors, so there is a risk of damaging the windings or insulating material (synthetic resin mold) or deteriorating the vacuum sealing properties during welding after the windings are housed in the winding frame. This has the effect that a superconducting coil can be obtained.
第１図は従来のモールド形超電導コイルの一例
を説明する断面図、第２図は本発明の超電導コイ
ルの一例を説明する断面図である。
１……超電導巻線、２……巻枠、３……冷却
路、６……熱良導体。
FIG. 1 is a sectional view illustrating an example of a conventional molded superconducting coil, and FIG. 2 is a sectional view illustrating an example of a superconducting coil according to the present invention. 1... Superconducting winding, 2... Winding frame, 3... Cooling path, 6... Good thermal conductor.
Claims (1)
巻線の外周を包囲する巻枠に巻線冷却用の寒剤が
導出入する冷却路を設けた超電導コイルにおい
て、前記巻枠と冷却路を高強度部材で形成し、前
記巻枠と冷却路の外周を板状の熱良導体によつて
密接するようにして包囲したことを特徴とする超
電導コイル。1. In a superconducting coil in which a superconducting winding is molded with synthetic resin and a cooling path is provided in a winding frame surrounding the outer periphery of the superconducting winding through which a cryogen for cooling the winding is led in and out, the winding frame and the cooling path are made of high strength 1. A superconducting coil, characterized in that the winding frame and the cooling path are closely surrounded by a plate-shaped thermally conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5539480A JPS56152212A (en) | 1980-04-28 | 1980-04-28 | Superconductive coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5539480A JPS56152212A (en) | 1980-04-28 | 1980-04-28 | Superconductive coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56152212A JPS56152212A (en) | 1981-11-25 |
| JPH0137841B2 true JPH0137841B2 (en) | 1989-08-09 |
Family
ID=12997298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5539480A Granted JPS56152212A (en) | 1980-04-28 | 1980-04-28 | Superconductive coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56152212A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2500305Y2 (en) * | 1987-06-30 | 1996-06-05 | 株式会社島津製作所 | Gradient magnetic field generating coil |
| US5448213A (en) * | 1993-09-16 | 1995-09-05 | Northrup Grumman Corporation | Electromagnetic shielding concept for superconducting levitating magnets |
| CN109036757B (en) * | 2018-07-16 | 2020-08-25 | 中国科学院合肥物质科学研究院 | Telescopic structure suspender with low cold loss of cold shield of small and medium superconducting magnet device |
| JP7246917B2 (en) * | 2018-12-20 | 2023-03-28 | キヤノンメディカルシステムズ株式会社 | Superconducting coil device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538593A (en) * | 1976-07-12 | 1978-01-26 | Mitsubishi Electric Corp | Superconductive device |
-
1980
- 1980-04-28 JP JP5539480A patent/JPS56152212A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538593A (en) * | 1976-07-12 | 1978-01-26 | Mitsubishi Electric Corp | Superconductive device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56152212A (en) | 1981-11-25 |
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